From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 186001C84D7; Thu, 24 Sep 2026 00:54:40 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790211282; cv=none; b=jT61aRWPfV1oCEV1+rlUzo2AK7GAOqKdref3yvGUqJ+LpqESjfNLXZZReuLPkaOa37VUBiqUXEat07SY6fxSVBd0GrnJDnQaI4r+BnH91n7kxhdTFsjerwaD6v7hBME2o3984XHSHO1HUhrQNa05rT5bLukiKIaNayRZZy6CO9k= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790211282; c=relaxed/simple; bh=TKbV2YIsNSc9iwsBoTwJ3ldYJiEHQarMU2Ztugg+ELg=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=K7mgG5ce+LSH6w3g2A6d500xatpEYW2V/jQ1LoPeG4k4BNG4As+pSyQoNIkRbr8y84PxV0iN1Zq+STqaSEcB2Tt5C1Bxjg31iQI24PaNTGnIZQn2KN88p+J0HWKjnSvtmZQWA2iJu4kuvs3vKCOXnOSETWbDsnUCDnqX45CMuRE= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=DwsokGza; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="DwsokGza" Received: by smtp.kernel.org (Postfix) with ESMTPSA id D43E21F000FF; Thu, 24 Sep 2026 00:54:39 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1790211280; bh=JG/dQUoHZvNPjuzT2aknhD7GBua9EthZihMp0PZ3Kfs=; h=Date:From:To:Cc:Subject:References:In-Reply-To; b=DwsokGzaUOCo7l7Vit8j1Q/7xVnmrcm7JwppmeLky5NS75hGp0kEIVdZu53dE1k9N V5OsSXL8FcHh3TgRbtjA8q1Q5yFs7icvGhxdJOLJEsC08LDoFIDCwj5oX0C9DZoD1j 1lZlS+BNQhXufAT/SZYiieg99DK4u+/IyrlxuvaIqTvQjLjF1scZE/1x3J69qPPdD6 UVGXSPXcGM2/fEoFUSDT0m5MxQUQE6NkhsmOyK09pukypQmhUeVzhP4MsQ/c8WU2tb T8cpKXL9pSCsXTq/HJeAH+BBE8IFR9nkShk+nvYkNtUtukTocVn2F5Bsq4Sx1Zsefu 7Oo1bq71LC3/w== Date: Wed, 23 Sep 2026 19:54:37 -0500 From: Bjorn Andersson To: Charlie Garner Cc: Konrad Dybcio , Abel Vesa , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Val Packett , Laurentiu Tudor , Bryan O'Donoghue , linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH 0/2] arm64: dts: qcom: Dell Inspiron 14 Plus 7441 backlight and touchscreen fixes Message-ID: References: <20260923152506.44989-1-charlie@akao.au> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260923152506.44989-1-charlie@akao.au> On Thu, Sep 24, 2026 at 12:55:04AM +0930, Charlie Garner wrote: > Two fixes for the Dell Inspiron 14 Plus 7441. > > Patch 1 gives the eDP panel a PWM backlight. The AUO B140QAX01.H panel > only supports PWM-pin brightness, so the DP AUX fallback registers a > backlight with max_brightness 0 and brightness cannot be changed. The PWM > wiring (PMK8550 gpio5 func3, pmk8550_pwm) matches the HP OmniBook X14. > It goes in the Inspiron DT rather than x1-dell-thena.dtsi, because the > Latitude 7455 was submitted with a different panel and a working > backlight, and only the Inspiron has been tested. The dtsi only gains a > panel label, which leaves the Latitude DTB functionally unchanged. If a > Latitude 7455 owner can confirm the same PWM wiring, this can move to the > dtsi. > > Patch 2 moves the touchscreen from 0x10, where nothing responds, to 0x09. > That is where the HID-over-I2C device answers, where the firmware's DSDT > places it on this machine, and where the Latitude 7455 DT already has the > same part. > > As far as I know, no Inspiron 14 Plus 7441 has its touchscreen at 0x10. > The original node matches the CRD, XPS 13 9345 and T14s nodes the DT was > based on. > > Charlie Garner (2): > arm64: dts: qcom: x1e80100-dell-inspiron-14-plus-7441: add PWM > backlight > arm64: dts: qcom: x1e80100-dell-inspiron-14-plus-7441: fix touchscreen > i2c address > Applied Thank you, Bjorn > arch/arm64/boot/dts/qcom/x1-dell-thena.dtsi | 2 +- > .../x1e80100-dell-inspiron-14-plus-7441.dts | 31 +++++++++++++++++-- > 2 files changed, 30 insertions(+), 3 deletions(-) > > > base-commit: 32afff1e816e10185bb571aa9d89dc2eb061d548 > -- > 2.55.0 >